Combine 2 cups almond flour, 1 1/4 cups arrowroot, 1/3 cup sugar, 1 teaspoon salt, 1 teaspoon xanthan gum, and 1/4 teaspoon baking powder in a medium bowl. Cut in 3/4 cup spectrum shortening with a pastry cutter, a spatula, or fingers until mixture resembles coarse meal. Stir in 1/4 cup water and stir to make a dough.