Smash bananas in large mixing bowl. Add seed or nut butter, apples, oil, coconut sugar and molasses.
Place remaining dry ingredients on top: almond flour, sweet rice flour, arrowroot, psyllium, spices, baking powder, baking soda and salt.
Stir together with spatula quickly (as batter will thicken as it sits), but without over-mixing. You can also use a handheld mixer. The batter will be very thick.
Fill muffin tin. This recipe makes 6 jumbo muffins, or 8 to 10 smaller muffins.
Bake 25 minutes (or about 20 minutes for smaller muffins). Allow to cool on rack, then enjoy.
To store, place in sealed container on the counter for up to 2 days, or freeze for up to 3 months. To defrost, place at room temp for 2 hours, or overnight.