Preheat oven to 400*F. Grease an 81/2" x 4 ½" and insert parchment paper.
In a medium bowl, combine non-dairy milk, molasses, melted non-dairy butter, white vinegar, and granulated sugar. Whisk to combine and set aside.
1 ½ Cups Non-Dairy Milk, 2 Tbsp Molasses, 2 Tbsp Non-Dairy Butter, melted and cooled, 4 tsp White Vinegar, 1 Tbsp Granulated Sugar
In a large mixing bowl, combine whole wheat flour, all-purpose flour, baking powder, baking soda, and salt. Stir to distribute, then add the wet ingredients and stir just until the batter forms.
1 ½ Cups Whole Wheat Flour, 1 ½ Cups All-Purpose Flour, 2 tsp Baking Powder, ½ tsp Baking Soda, 1 ½ tsp Kosher Salt
Scrape the batter into a prepared loaf pan and spread the batter out evenly, then top the loaf with rolled oats.
1 Tbsp Rolled Oats
Bake the loaf in a 400*F oven for 45-48 minutes, or until a toothpick inserted into the center of the loaf comes out clean.
Allow the loaf to cool for at least 20 minutes before removing from the pan, slicing, and serving.