With a super simple method, no added sugar, and the most tender texture, this One-Year-Old Birthday Cake is perfect as a smash cake OR a cake to share. You can vary the flavor, make it ahead, and rely on the easy recipe to help enjoy the special day.
Preheat the oven to 375 degrees F. Coat two 6-inch metal round baking pans with nonstick spray (or you can use one 9-inch round pan). Trace the pans onto parchment paper and cut the rounds out. Trim as needed to fit and place inside of each pan. Set aside.
In a large bowl, stir together the yogurt, banana, butter, eggs, and vanilla.
Add the flour, baking powder, baking soda, and salt.
Gently stir the yogurt mixture into the flour mixture.
Pour half of the batter into each of the prepared pans. You will use about 1½ cups batter in each pan.
Bake for 16-20 minutes, or until the edges are lightly golden brown and a cake tester inserted into the center comes out cleanly. Let cool for 2 minutes in the pan, then carefully invert onto wire racks. Remove the parchment paper rounds and cool completely.
Top with desired frosting.
Notes
Once cooled, store cake in an airtight container for up to 5 days.
You can also freeze the cut cake in a freezer bag with as much air removed as possible for up to 3 months. Thaw at room temperature or in 15 second increments in the microwave.
This bakes best in a metal pan, rather than glass.
Dairy-free: Use a nondairy yogurt and a neutral oil like canola in place of the butter.
Gluten-free: Substitute cup-for-cup gluten-free flour in place of the wheat flour.
Egg-free: Omit the eggs. Reduce the yogurt to 1/4 cup. Add 1/4 cup milk. Proceed with the recipe.