Carob Cake with Walnuts

1 1/2 cups whole wheat pastry flour
3 tablespoons carob powder
2 teaspoons baking powder
1/2 teaspoon sea salt
6 tablespoons canola or melted coconut oil
2/3 cup maple syrup (room temperature)
3/4 cup almond milk or soymilk (room temperature)
1 teaspoon vanilla
1/2 cup walnuts, coarsely chopped (optional-for top of cake)

Preheat oven 350°
Prepare 8-inch cake pan with oil and flour or line bottom with parchment.
Combine sifted dry ingredients in bowl. Set aside
In separate bowl, whisk together wet ingredients and pour into dry. Mix well.
Pour into prepared pan.
Sprinkle walnuts on top.
Bake 35 to 40 minutes.