Get Ready to Bake: First, turn your oven on to 350°F (175°C). Get your 8x8-inch pan ready by greasing it and lining it with parchment paper.
Mix the Wet Ingredients: In a big bowl, whisk together the granulated sugar, vegetable oil, and buttermilk. Then stir in egg, vanilla, vinegar, and the red gel color.
Stir in the Dry Ingredients: Now, add the flour, cocoa powder, 1/2 teaspoon of baking soda, baking powder, and salt. Gently mix until you can't see any dry spots.
Add the Chocolate: Carefully fold in 3/4 cup of the white chocolate chips. Remember, don't mix it too much!
Bake Your Brownies: Pour the batter into your pan and spread it out. Sprinkle the last 1/4 cup of white chocolate chips over the top and bake for 25-30 minutes.
Cool and Slice: Let the brownies cool down all the way in the pan. Then, lift them out, slice them into 9 squares, and ENJOY!