Preheat the oven to 350°F (180°C). Line an 8 × 8 inch pan with crumpled parchment paper.

In a bowl, combine all ingredients and blend using a hand blender (or a regular blender) until completely smooth and lump-free.

Pour the batter into the prepared pan. If there are air bubbles, pop them with a toothpick.

Bake for 1 hour, or until fully set and lightly golden on top.

Let it cool at room temperature, then refrigerate for about 2 hours until completely chilled before serving.