Obsession is a strong word, but in this case, an accurate one. When I began making these for our bakery (twenty years ago), everyone in my family got hooked on them. Moist chocolate cake and a rich chocolate chip cheesecake are baked together in muffin cups and the result is a decadent, obsession worthy treat.
My preference is to bake these in giant muffin pans with a cup volume of about 7 oz or 200ml, the ones that are sometimes referred to as Texas size. Just try not to eat the whole thing by yourself! This time, I made them in standard sized muffin cups which have a volume of 3.5 oz or 100ml, but they can be made in any size pan as long as you use cupcake liners. Otherwise, it is a lot of work to pry them out of the pans.
There are a few tips I like to share in hopes of guaranteeing success for anyone that makes these. First of all, use a cream cheese that is dense rather than fat free, whipped or extra creamy. While that famous brand (named after a Pennsylvania city) is great for spreading on a bagel, it really doesn’t provide the best results for this recipe. Whatever they do to make the cheese creamy yields a filling that is thin and runny. During baking, the chips can sink to the bottom of the cupcake while the cheese floats to the top. If the filling doesn’t sink in the middle a bit, they just don’t look like they should but more importantly, the two batters bake layered. The best ones have a cheesecake center with cake on the sides and bottom and just a little of the cheese filling peeking out on top. Save your pennies and buy the store brand, it will work perfectly! You can make the filling ahead of time and keep it in the fridge; cold filling is more likely to sink in than room temp filling.
When I make these, I generally use whatever chocolate chips I have handy. However, if you use mini chips, they will be less likely sink to the bottom like the large ones will. Keep in mind that either way, the results will be delicious. Just save the freshly chopped chocolate for a different recipe since the tiny shards will color the filling and make it look more like a chocolate filling.
Want to make these quickly? Want all of them to be the same size? Use portion scoops! Seriously, purchase professional style portion scoops, also called dishers, in a range of sizes and you will not have to worry about the size or whether they will bake evenly. Depending on what size pan you use, you will need a range of scoops. For jumbo pans, #12 and #16 will work for the cake and cheesecake, respectively while #16 and #40 will be needed for a standard sized pan. Purchasing scoops is an investment but if you are regular baker, you will find yourself using these scoops for all sorts of things such as muffins, drop biscuits, cookies and more. For the best prices and range of sizes, look in a restaurant supply shop or website.
If you do not intend to use the scoops, you will need a 1/3 cup and 1/4 cup measure for the jumbo cupcakes (chocolate cake and cheesecake filling respectively) or 1/4 cup and 1/8 cup measure for the standard sized cupcakes.
Black Bottom Cupcakes
makes 12 jumbo or 24 standard sized cupcakes
12 ounces cream cheese (see notes above)
1-1/2 cups plus 2/3 cup granulated sugar
2 large eggs
1 cup mini semi-sweet chocolate chips (see notes above)
2 cups unbleached all-purpose flour
2/3 cup unsweetened, natural cocoa powder
1-3/4 teaspoons baking soda
3/4 teaspoons salt
4 teaspoons vinegar-distilled white or cider
1 teaspoon vanilla extract
1/2 cup vegetable oil such as canola or soybean
Preheat the oven to 350F. Line the muffin tins with paper cups and set aside. In a mixing bowl, cream the cheese with the 2/3 cup sugar to combine, do not whip it because it will warm up (see notes above). Add the eggs, one at a time, then mix only enough to combine. Stir the chocolate chips into the filling by hand and set it in the fridge until needed.
Place a large mesh strainer or sifter into a large mixing bowl. Add the flour, remaining 1-1/2 cups sugar, cocoa, baking soda and salt to the strainer and sift the dry ingredients into the bowl. Using a whisk, combine them completely. In a large liquid measuring cup, pour 1-1/2 cups water, the vinegar and the vanilla and set aside. Dump the oil into the dry ingredients and add about half of the water. Using the whisk, mix it well to create a smooth paste. Scrape the bowl and whisk in the remaining water mixture. Whisk it well and using the larger portion scoop or measuring cup (see notes above), divide the batter between the cups. Top each cupcake with a dollop of the cheesecake using the scoop or measuring cup called for in the notes above.
Bake the cupcakes until they have a little golden-brown color around the edges of the cheesecake and they feel firm around the edges of the cake, about 40-45 minutes for the jumbo size, 30-35 minutes for the standard size. To bake them evenly, be sure to turn them halfway through baking. Once baked, let them cool in the pan for 10-15 minutes then carefully turn them out and place them on a rack to cool completely. To store these, keep them in the fridge, but let them sit out a bit to warm up to room temp for serving. Freezing works well for longer storage; wrap them individually and place them in a closed container in the freezer. Allow them to thaw in the fridge, still wrapped and then serve them at room temp. They will last in the freezer for a month, maybe two but I doubt they will ever make it there…
This recipe can also be found in my book, Desserts from the Famous Loveless Cafe.