Step 1

Cream together sugar and butter. Add egg and milk.

Step 2

In separate bowl, combine sour cream, pudding mix, salt and soda.

Step 3

Add flour and sour cream to butter mixture, mixing until smooth.

Step 4

Mix in white chocolate chips and lemon zest. Add 1 drop of yellow food coloring if desired.

Step 5

Drop by rounded tablespoonfuls onto greased cookie sheet.

Step 6

Bake at 375 for 10 minutes. Transfer to a cooling rack and enjoy!