Bakery Style Gluten-Free Coffee Cake

Ingredients

• 1/4 teaspoon salt
• 5 tablespoons butter
• 1/4 cup olive oil
• 1/2 teaspoon baking soda
• 1 teaspoon baking powder
• 1/2 teaspoon cinnamon
• 1/4 cup packed brown sugar
• 1 large egg (room temperature)
• 2 1/2 tablespoons pure maple syrup
• 2 teaspoons pumpkin pie spice
• 3 tablespoons organic cane sugar
• 1/3 cup old fashioned oats
• 1/4 cup sweet rice flour
• 3/4 cup sweet potato puree
• scant 1/2 teaspoon kosher salt
• 1/2 cup 73 grams teff flour
• 3/4 cup 85 grams walnut meal
• 1/4 cup 40 grams sweet rice flour
• 1/2 cup coarsely chopped walnuts