Step 1

Preheat the oven to 375F (190C). Line a 9-inch square baking pan with parchment paper, leaving paper overhand on both sides (for easy removal later). Lightly oil or spray the exposed sides.

Step 2

In a large bowl, combine the coconut flour, flaxseed meal, cinnamon and salt. Stir in the water, bananas, (optional) sweetener, and vanilla until completely blended. Let stand for 10 minutes.

Step 3

Stir the baking powder into the batter; spread evenly into prepared pan. Scatter with blueberries, gently pressing into batter. If using, sprinkle with pepitas.

Step 4

Bake in the preheated oven for 50 to 55 minutes until deep golden brown and set at the center. Cool at least 20 minutes before lifting out of the pan (use the parchment paper overhang). Cut into 9 squares. Serve warm, room temperature, or chilled.