Preheat the oven to 375 degrees Fahrenheit.
Add 1 1/3 cups unsweetened plant-based milk, 1/2 cup pure maple syrup, 1/2 cup creamy almond butter, and 1 teaspoon vanilla extract to a mixing bowl, then use a whisk to mix well.
Add 2 cups whole wheat flour (spooned into the measuring cup, then leveled—not scooped), 4 teaspoons baking powder, 1/4 teaspoon ground cinnamon, 1/4 teaspoon salt, and optional 1 pinch of ground nutmeg to a separate bowl, then mix well.
Transfer the dry ingredients into the bowl with the wet ingredients, then whisk to combine.
Add 1 cup chopped fresh ripe pear, then gently mix to combine.
Divide the batter evenly into 12 portions in a muffin pan lined with paper baking cups.
Bake for 22 minutes or until a toothpick inserted into the center of a muffin comes out looking clean.
Let the muffins cool to room temperature before removing from the pan and serving.