Red Velvet Brownies with Cream Cheese Frosting

Step 1
Preheat oven to 350 degrees F (175 degrees C). Grease an 8×8 baking dish with 1 teaspoon butter.

Step 2
Whisk 1 cup sugar and melted butter together in a bowl. Add vanilla, cocoa powder, salt, food coloring, vinegar, and eggs to sugar mixture, blending well after each addition.

Step 3
Stir flour into sugar mixture until batter is just combined. Pour batter into prepared baking dish, reserving 1/3 cup batter for cream cheese layer.

Step 4
Blend cream cheese, 1/4 cup sugar, egg, and vanilla extract together in a bowl. Spread cream cheese mixture over brownie batter in the prepared baking dish. Pour reserved 1/3 cup brownie batter in 2 rows over cream cheese layer. Pull a knife through the batter rows into cream cheese layer to form swirls.

Step 5
Bake in the preheated oven until a toothpick inserted into the center comes out clean, 30 to 35 minutes. Cool completely before slicing.