Big ol' Batch of Pumpkin Muffins

4 cups all-purpose flour
4 teaspoons baking powder
1 teaspoon baking soda
1/2 teaspoon salt
1 1/2 teaspoon ground cinnamon
1 teaspoon ground ginger
1/4 teaspoon freshly grated nutmeg
pinch of ground allspice
2 stick (8 tablespoons) unsalted butter, at room temp. or 1 c oil
1 1/8 maple syrup
4 large eggs
1 teaspoon vanilla extract
1 1/2 cup canned unsweetened pumpkin puree
1/3 cup buttermilk
1 cup golden raisins
1 cup chopped walnuts or pecans
1 c chocolate chips (optional)

mix dry ingredients
mix wet ingredients
then mix them together
spoon into muffin tins and bake at 350 degrees for 20-30 mins