Step one. For the dough: In a bowl, sift together the flour, baking soda, baking powder, nutmeg and cream of tartar. Set aside. *MAKE SURE YOU GENTLY SPOON YOUR FLOUR INTO YOUR MEASURING CUP, VS SCOOPING THE FLOUR. SCOOPING CAN RESULT IN TOO MUCH FLOUR.
And now, In a separate bowl, cream the butter and sugars until fluffy. Add the eggs, eggnog and vanilla or rum extract. Mix well.
After it, Stir in the dry ingredients. Stir until just combined.
Complete Ingredients and Instructions: https://www.lovefromtheoven.com/eggnog-cookies/