Gluten/dairy-free chocolate chip pumpkin (& vegan) muffins

Ingredients

• 1 cup all purpose gluten-free flour
• 1 teaspoon. baking powder
• 1 teaspoon. baking soda
• 1 teaspoon. xanthan gum
• 1 teaspoon. cinnamon
• 1 16 ounces. can pumpkin puree
• 1 cup organic, turbinado sugar
• 1/2 cup canola oil
• 1/3 cup soymilk (or other substitute)
• 3/4 cup non-dairy chocolate chips
• 1/2 cup chopped walnuts