Call us: 415.613.4373


Sorry, we only sell specific flavors by the dozen or half-dozen. The Sibby’s Sampler is the best way to get a good variety of our flavors. We do sell jumbo cupcakes individually, with a minimum order of a half dozen regulars OR 1 dozen minis OR 3 jumbos.

We don’t frost the cupcakes to create a cupcake cake (where it looks like a cake but people can pull out cupcakes). It gets really messy.

Our Flavor of the Month changes on the first of every month and is available during that month only. Past flavors can be custom-ordered. The minimum order for custom flavors is 8 dozen mini cupcakes or 4 dozen regular-sized cupcakes. The cost for customized flavors is $45/dozen for mini cupcakes and $60/dozen for regular-sized cupcakes. Jumbos are $15/each and must accompany a minimum order of minis or regulars.

Our minimum order for delivery is 1 dozen cupcakes (any size).

Our earliest pickup time is 10 AM. Sometimes we can accommodate an earlier pickup so please don’t hesitate to ask.

We offer regular-sized cupcakes by the half-dozen. Mini cupcakes must be ordered by the dozen but flavors can be split by the half-dozen.

All of our cupcakes are baked fresh each morning. We refrigerate them briefly to set the frosting and to aid in transporting them in the car. Once you pickup your cupcakes, you do not need to put them in the refrigerator. Sibby’s cupcakes should be enjoyed at room temperature.

The cupcakes need to be kept at a cool room temperature but do not need refrigeration. Sibby’s cupcakes should be enjoyed at room temperature.

Yes, we do filled cupcakes. Our fillings include: Chocolate, Coffee, Lemon, Vanilla Buttercream, Cinnamon and Vanilla Cream Cheese, and Dulce de Leche and Salted Caramel. Fillings are an additional $12/dozen for mini and regular-sized cupcakes, and $2 extra per jumbo. Custom fillings such as Raspberry or Strawberry Buttercream are an additional $24/dozen.

The Sibby’s Sampler changes monthly and is an assortment of six flavors, including the flavors of the month. Visit the order section of our website to see a photo and description of our current sampler. When you place an order for a future month, we’d be happy to let you know what flavors will most likely be included. Please note that our Sibby’s Sampler is NOT gluten-free.

We can’t guarantee specific flavors and quantities in the Sibby’s Sampler but we can certainly make a note to NOT include certain flavors. Let us know if you’re craving a specific flavor and we will do our best to include it.

Yes, please do! We typically have Sampler boxes of 1 dozen minis ($33) that are available for sale early in the morning. Later in the day, we have “extra” cupcakes that we sell individually to folks on a first come, first served basis. Regular-sized cupcakes are $4.00 each. Mini cupcakes are $2.75 each. We recommend calling in advance to confirm that we have extra cupcakes.

Yes, Sibby’s Cupcakery is a nut-free bakery. Our cupcakes can be enjoyed by those with peanut and tree-nut allergies and can be safely brought to parties and events requiring nut-free treats.

A note about Coconut: Although the word “nut” is in its name, a coconut is a fruit, NOT a nut. In 2006, the FDA began classifying coconuts as tree nuts despite confirming that coconuts are not nuts and not a major food allergen. There are ongoing efforts to get the FDA to correct their misclassification of coconuts to eliminate consumer confusion. For folks with specific coconut allergies, we do use shredded coconut in two of our signature cupcakes: Coconut Snowball and Chocolate Coconut Cream, and occasionally in a featured flavor-of-the-month. We will always clearly state when shredded coconut is included and it will always be visible as a topping as well. We do not use any other forms of coconut in the bakery. We take great care to prevent cross-contamination at Sibby’s Cupcakery. If you’d like your coconut cupcakes boxed separately, please let us know when you place your order.

Our Gluten-Free cupcakes are made with gluten-free ingredients but we are not a completely gluten-free bakery. We take great care to avoid cross-contamination but because we do use wheat flour in our bakery, we don’t recommend our cupcakes for individuals with severe wheat allergies or Celiac disease.

Sibby’s Cupcakery is committed to giving back to our Bay Area community and to those in need. Please submit a written proposal to and we will get back to you. We review written donation requests on the first of every month.

Stands need to be returned within 3 days of rental. Please note: as a result of Covid-19, we are currently suspending all stand rentals until further notice.

Yes. To ensure that our customers always have first priority, we only rent our platters to those purchasing cupcakes. Please note: as a result of Covid-19, we are currently suspending all stand rentals until further notice.

Unfortunately, we can’t reserve space in our schedule until an order is placed. Customers are welcome to place an order and adjust quantities and flavors up until noon the day before delivery or pickup.

You can pick up your cupcakes on Sunday and they will still be fresh and delicious on Monday. For best results, store cupcakes in Tupperware or a cake stand overnight, or wrap the cupcake box in plastic wrap. Please note: as a result of Covid-19, we are currently closed on Mondays and Tuesdays until further notice.

While we don’t have space for you to dine-in, you are always welcome to stop by during business hours to place an order, grab a cupcake or just say “hi”. We specialize in custom cupcakes that are baked to order from scratch daily. We deliver our cupcakes from San Francisco to Sunnyvale. You are also welcome to pick up cupcakes from our bakery in downtown San Mateo. For pickups, the minimum order is one dozen mini-sized cupcakes or a half-dozen regular-sized cupcakes. The Sibby’s Sampler offers an assortment of our most popular flavors.

If you’re looking for something specific, we recommend placing an order in advance (by 4:30 pm the day before you need them at the latest). We also bake “extras” (beyond our orders) to accommodate same-day requests and to satisfy any unpremeditated and sudden cupcake cravings! We typically have sampler boxes (boxes of a dozen cupcakes in assorted flavors) available when we open each day and then individual “extras” are sold on a first-come, first-served basis. Give us a call to see what’s available.

It’s best to place your order as early as possible, especially if you’d like custom decorations. Fridays, weekends, holidays (and occasionally the most random days ever!) can book up a week or more in advance. Otherwise, one or two days is typically enough notice. IF we can squeeze in a last-minute order, we will, so don’t hesitate to call. Please understand that if we can’t, it’s because we are truly at our maximum capacity.

Sibby’s Cupcakes are best enjoyed within 2 days but often stay moist longer if stored in Tupperware or a cake stand at a cool room temperature.

Yes, Sibby’s Cupcakes freeze well. Follow these instructions for best results:

Freeze: Place cupcakes in Tupperware or wrap pink bakery box twice with plastic wrap. Be careful not to tip the box while packing. Place directly into freezer.

Defrost: Remove box from freezer and unwrap the plastic. Let the cupcakes sit for two hours prior to the event to allow adequate time for defrosting. Enjoy!