Grain-Free Peanut Butter Brownies

1 cup peanut butter (add salt if using unsalted peanut butter)
2 eggs (add a third egg for more cake-like texture)
1/2 cup honey
1 tsp baking soda
1 tsp cinnamon, or 1/4 cup cocoa for chocolate flavor
Optional: 1-2 overripe bananas or 1/2 cup applesauce

Mix all ingredients together. Bake at 350° in a buttered 9"x9" pan for about 30 minutes (until toothpick comes out clean).