1. Prepare Your Baking Pan and Oven: Start by preheating your oven to 350 F (175 C). Grease and flour a 9×5-inch loaf pan, or line it with parchment paper, leaving an overhang on the long sides to easily lift the loaf out later. This prevents sticking and makes cleanup a breeze.

2. Combine Dry Ingredients: In a large mixing bowl, whisk together the all-purpose flour, granulated sugar, baking powder, and salt. Make sure there are no lumps and the ingredients are well combined. This ensures even distribution of leavening.

3. Mix Wet Ingredients: In a separate medium bowl, whisk together the dairy-free plain yogurt, lemon zest, fresh lemon juice, vegetable oil, and vanilla extract until smooth. The mixture should look creamy and uniform.

4. Combine Wet and Dry: Pour the wet ingredients into the dry ingredients. Using a spatula or wooden spoon, mix until just combined. Be careful not to overmix; overmixing can lead to a tough loaf. A few streaks of flour are perfectly fine.

5. Fold in Blueberries: Gently fold in the fresh blueberries. If you’re using frozen blueberries, add them directly from the freezer without thawing to prevent them from bleeding into the batter too much. Distribute them evenly throughout the batter.

6. Transfer to Pan and Bake: Pour the batter into your prepared loaf pan and spread it evenly. Place the pan in the preheated oven and bake for 45-50 minutes, or until a wooden skewer or toothpick inserted into the center comes out clean. The top should be golden brown and spring back when lightly touched.

7. Cool Before Glazing: Once baked, remove the loaf from the oven and let it cool in the pan for about 10-15 minutes. This allows it to set properly. Then, carefully lift it out using the parchment paper overhang or invert it onto a wire rack to cool completely.

8. Prepare and Apply Glaze (Optional): While the loaf cools, whisk together the optional: 1 cup Powdered Sugar and optional: 2-3 tablespoons Fresh Lemon Juice in a small bowl until you have a smooth, pourable glaze. Once the loaf is completely cool, drizzle the glaze over the top. Let the glaze set for a few minutes before slicing and serving.