Preheat your oven to 400ºF, and lightly grease 12 muffin cups.
Combine the vinegar and soymilk in a medium-sized bowl or glass measuring cup, and allow it to sit as the vinegar “curdles” the soymilk.
In a large bowl, whisk together the flours, baking powder, baking soda, and salt.
Measure the milk beverage in a liquid measuring cup. Whisk in the applesauce, sweetener, oil, and vinegar.
Pour the wet mixture into the dry mixture and gently stir until just combined. Do not overmix!
Place 1 heaping tablespoon of the batter in each muffin cup. Top each mound of batter with 1 teaspoon of jam. Top the jam with the remaining batter (another heaping tablespoon per muffin cup).
Bake for 15 minutes. Remove the muffins and enjoy warm or let cool.
Recipe by Go Dairy Free at https://www.godairyfree.org/recipes/jam-filled-soda-bread-muffins