Ingredients
- 1½ cups (about 250 g) cooked kidney beans, drained and rinsed
- 3 large eggs
- 1 teaspoon baking powder
A Closer Look at the Ingredients
Cooked kidney beans. Kidney beans are the base of this loaf. They provide structure, protein, fiber, and a mild, earthy flavor. Canned kidney beans are the easiest option. Drain and rinse them thoroughly to remove the canning liquid, which can be salty and make the batter too wet. Pat them dry for the best results. A standard 15-ounce can yields about 1½ cups of drained beans, close to the amount you need. Light red and dark red kidney beans both work. If you cook dried beans yourself, see the safety notes below.
Large eggs. Eggs bind the batter, add protein, and give the loaf its structure and lift. They act as the glue that holds the blended beans together and set as the loaf bakes. Use large eggs at room temperature for the smoothest blend and the most even rise.
Baking powder. Baking powder provides lift, making the loaf lighter and less dense than a plain blended bean mixture would be. Use fresh baking powder, since it loses strength over time. To test it, stir a half teaspoon into a little hot water. It should fizz right away.
Important: Cooking Kidney Beans Safely
Kidney beans naturally contain a compound called phytohaemagglutinin, which can cause illness if the beans are eaten raw or undercooked. Canned kidney beans are fully cooked during processing and are safe to use straight from the can after draining and rinsing.
If you’re using dried kidney beans, soak them for at least 5 hours or overnight, drain and discard the soaking water, then boil them vigorously in fresh water for at least 10 minutes, followed by simmering until completely tender, usually around 45 to 60 minutes. Don’t use a slow cooker to cook raw kidney beans, because the low temperature may not destroy the compound. Cool and drain the cooked beans before using them in this recipe. When in doubt, use canned beans.
Instructions
Heat your oven to 350°F (175°C). Line a small loaf pan with parchment paper, leaving an overhang on the long sides so you can lift the loaf out easily, or lightly grease the pan. A pan around 8½ × 4½ inches works well. If you only have a standard 9 × 5-inch pan, the loaf will be thinner and may bake slightly faster, so check for doneness a few minutes early.
Drain and rinse the kidney beans thoroughly under cold water until the water runs clear. Pat them dry with a clean towel or paper towels to remove excess moisture. Excess liquid is the main reason bean breads turn out damp or dense, so don’t skip this step.
Add the beans, eggs, and baking powder to a blender or food processor. Blend until smooth, scraping down the sides as needed. The batter should look thick, pourable, and uniform, a bit like a thick pancake batter, with no visible bean pieces. If you’re using a food processor, process longer and scrape down the bowl several times to avoid chunks. A high-speed blender gives the smoothest result. Because the baking powder activates when it meets moisture, work quickly from here.
Pour the batter into the prepared loaf pan and smooth the top with a spatula. Tap the pan gently on the counter to release large air bubbles.
Bake for 35 to 40 minutes, or until the loaf is set in the center and a toothpick inserted comes out mostly clean. The top should be firm to the touch and lightly golden, and the edges should pull away slightly from the pan. If the top is browning too quickly, loosely cover it with foil for the last 10 minutes.
Let the bread rest in the pan for 10 minutes, then lift it out and transfer it to a wire rack. Allow it to cool fully before slicing so it holds together better. Bean and egg-based loaves are delicate when warm, and the structure firms up as it cools.
Slice the loaf and toast the slices for the best texture. Top with avocado, cream cheese, eggs, or your favorite sandwich fillings.