Step 1

Preheat oven to 325 degrees and line sheet pans with parchment or silicone baking mats.

Step 2

Combine flour, baking soda, baking powder and salt. Set aside.

Step 3

In a large mixing bowl, beat together butter an granulated sugar.

Step 4

Beat in eggs, sour cream and vanilla until well combined.

Step 5

Add dry ingredients and beat until just combined. Fold in walnuts if using. The batter will be thick.

Step 6

Drop Tablespoons (1 1/2 inch balls) of batter onto lined pans, about 2 inches apart.

Step 7

Bake 12-15 minutes, until the edges are just beginning to turn golden. Cool.

Step 8

Once they've cooled, you can glaze and serve. If you're planning on freezing these, you'll want to freeze them after baking but without the glaze.

Step 9

Mix all ingredients until well combined well.

Step 10

Dip the cookies into the glaze. Top with some sprinkles if you want a pop of color.

Step 11

Set aside for a few minutes until the glaze has dried. Serve immediately or store in an airtight container on your counter.