Follow these simple steps to create your delicious White Bean Muffins:

1. Preheat your oven to 350°F (175°C) and line a muffin tin with paper liners or grease it with spray.
2. Prepare the Bean Mixture: In a mixing bowl, mash the cooked white beans using a fork or a potato masher until creamy.
3. Mix Wet Ingredients: Add in milk, vegetable oil, eggs, and vanilla extract to the mashed beans. Whisk together until smooth.
4. Combine Dry Ingredients: In another bowl, mix the flour, baking powder, sugar, and salt together.
5. Combine Mixtures: Gradually add the dry ingredients to the wet ingredients. Stir gently until just combined. Avoid overmixing.
6. Add Optional Ingredients: If you are using chocolate chips, nuts, or dried fruits, fold them into the batter at this stage.
7. Scoop Batter: Using a spoon or an ice cream scoop, fill the muffin cups evenly with the batter, about ⅔ full.
8. Bake: Place the muffin tin in the preheated oven and bake for 20-25 minutes, or until the tops are golden and a toothpick inserted comes out clean.
9. Cool: Once done, remove them from the oven and let the muffins cool in the tin for about 10 minutes. Then transfer them to a wire rack to cool completely.

These straightforward steps will yield a batch of incredible White Bean Muffins that everyone will love!