Preheat oven to 350°F (175°C) and grease a loaf pan or line with parchment paper.
Combine almond milk and lemon juice; let rest 10 minutes.
Mix applesauce, melted butter, and protein powder. Add molasses, then eggs; whisk until smooth.
In a separate bowl, whisk flour, unflavored protein, ginger, cinnamon, nutmeg, cloves, and baking soda. Fold dry ingredients into wet, alternating with milk, until just combined.
Pour batter into pan; bake 45-50 minutes, covering with foil after 30 minutes. Cool 15 minutes before transferring to rack.
Notes
Ensure not to over-mix to keep the loaf light and moist.