Best Cupcake Ever aka Lindt Truffle Cupcake

On New Years Eve, one of my girlfriends brought the most amazing cupcake ever.

If you have a goal this year to eat healthier, step away from this post.
If you want to take the chance then make this cupcake.
I'm not going to make it; because I know how I am.
Here's the recipe that she got from someone, who got it from someone, who most likely got it from Pinterest.

Ingredients for cupcake:

1 3/4 c. cake flour
2 tsp baking powder
2/3 c. whole milk
1/2 tsp. double-strength vanilla or 1 tsp. vanilla
4 egg whites, room temperature
6 TBSP butter, softened
1/2 c. granulated sugar
1/4 c. sour cream
12 Lindt chocolate truffles

Ingredients for frosting:

6 oz. white chocolate, chopped
1 pkg. (8 oz) cream cheese, softened
1/4 c. butter (1/2 stick), softened
1/2 tsp. double-strength vanilla (1 tsp. vanilla)
2 c. powdered sugar

Directions:

1. Preheat oven to 325 degrees. Place paper lines in wells of muffin pan. Whisk flour and baking powder in small bowl.

2. Combine milk and vanilla in 1 c. measuring cup.

3. In medium mixing bowl, beat egg whites on high speed of electric mixer until stiff peaks form. In large mixing bowl, beat butter and granulated sugar on medium-high speed until fluffy; beat in sour cream until smooth.

4. On medium speed, add flour mixture in three additions, alternating with milk mixture in two additions, mixing until smooth. Whisk in one-third of the egg whites with whisk. Fold in remaining egg whites using whisk. Using ladle or another large scoop, divide batter evenly among 12 liners.

5. Bake 17-20 minutes or until wooden pick inserted in centers comes out clean. Remove pan from oven to cooling rack (don't take out the cupcakes yet). Immediately snip a 1/2"-deep "X" into the top of each cupcake using kitchen shears.

6. Press one truffle into each cupcake until flush with top of cupcake. (Truffles will melt into cupcakes).

7. Remove cupcakes and cool 30 minutes or until room temperature.

8. Meanwhile, for frosting, melt white chocolate slowly either in microwave, stirring every 30 seconds, or in a double-broiler on a stovetop, stirring constantly. Let stand 3 minutes or until slightly cooled. In clean mixing bowl, combine melted chocolate, cream cheese, butter, and vanilla. Using clean beaters, beat on medium speed until well blended.

9. Slowly add powdered sugar; beat well.

10. Smooth frosting unto cooled cupcakes.

11. Call Faith a witch for sharing this and gobble every cupcake you made ♥.