Add salt and baking soda to flour to a large bowl and mix.
1 teaspoon of baking soda, 1 teaspoon of salt, 3 cups of flour
In another mixing bowl, add brown sugar, sugar and softened butter and mix until creamy. Add the eggs and vanilla and mix until creamy and without clumps.
2 sticks of butter, 1/2 cup of sugar, 1 1/4 cup of brown sugar, 2 eggs, 2 1/2 teaspoons of vanilla
Gradually mix in the flour until a thick batter forms.
Chop the pretzels into small bits.
1/2 cup mini pretzels
Add the chocolate chips, M&Ms, and pretzel bits.
1 cup semi-sweet chocolate chips, 1/2 cup Christmas M&Ms
Using a small cookie scoop, scoop out cookie dough. Roll into ball and place on an oil sprayed baking sheet.
Cook on 350° for 13 minutes.
Once done, slightly press the cookies down with a flat spatula and let cookies rest for 5 minutes.
Remove the cookies onto a baking rack for further cooling.
Serve on or before Christmas Eve with a glass of milk.