Step 1

Preheat oven to 350 F. Coat a 9" x 13" baking dish with non-stick spray and set aside.

Step 2

In a large bowl, beat together the butter and cream cheese until combined. Add the white sugar and beat until light and fluffy, about 2 minutes. Beat in the egg, vanilla, and almond extract until just combined.

Step 3

In a medium-sized bowl, stir to combine the flour, baking soda, baking powder, and cream of tartar.

Step 4

Stir half of the dry ingredients into the wet ingredients, then stir in the remaining dry ingredients.

Step 5

Pour the batter into your baking dish and bake for 25-30 minutes, until an inserted toothpick comes out clean. Set the cake aside to cool to room temperature.

Step 6

In a large bowl, beat the butter and cream cheese together until well combined. Beat in the vanilla extract. Mix in 2 cups of powdered icing sugar, then add additional as needed to reach desired consistency.

Step 7

Use an offset spatula to spread the cream cheese frosting on the cooled cake.

Step 8

Top with sprinkles, slice, and serve.