Whisk the sugar and oil until the mixture looks slushy, which is okay.
1 cup Oil, 1 cup Sugar
Add the eggs and yolk one at a time. Mix well after each one. Add in vanilla extract and mix.
2 Egg, 1 Egg yolk, 2 teaspoon Vanilla extract
Add the red food color. If you like the more vibrant red, add more color. Add the vinegar and mix.
1-2 teaspoon Red gel food coloring, 1 teaspoon White vinegar
Start adding the dry ingredients alternating with buttermilk in three passes of dry ingredients and two buttermilk. Start and finish with dry ingredients.
¾ cup Buttermilk
Fill the cupcake liners to ⅔ their capacity. Bake them for 15-18 minutes. Let them cool down in the pan for 10 minutes, then transfer them to the cooling rack to cool down complelely.
How To Make The Frosting
Use a double boiler to melt the white chocolate. In a saucepan, bring some water to a boil. Let the water simmer. Place white chocolate in a glass or heatproof bowl and place over the simmering water. Be sure the water is not touching the bowl. Stir until the chocolate is melted and lump-free. Set it aside to cool down.
4 ounce White chocolate
Use the paddle attachment and beat the butter until light and pale.
1 cup Butter
Mix the meringue powder into one cup of sifted powdered sugar. Add the powdered sugar to the butter in spoonfuls.
2-3 cups Powdered sugar, ½ teaspoon Meringue powder
Add the heavy cream and vanilla extract, mix well.
1 tablespoon Heavy cream, 1 teaspoon Vanilla extract
Bring the speed down and beat the mixture for 2 minutes on low speed.
Add the room temperature melted white chocolate and mix well.
Use your favorite piping tip and frost the cool cupcakes.