Prep the pan and oven: Heat the oven to 350°F (175°C). Line an 8x8-inch square baking pan with parchment, letting it hang over two sides for easy lifting. Lightly grease the parchment.

Mix dry ingredients: In a large bowl, stir together the rolled oats, almond flour, cinnamon, salt, and baking powder. Add cranberries and nuts or seeds. Toss to coat so they distribute evenly.

Whisk the wet ingredients: In a separate bowl (or a large measuring cup), whisk the eggs, maple syrup, applesauce, nut butter, and vanilla until smooth. If your nut butter is stiff, warm it briefly so it blends easily.

Combine: Pour the wet mixture into the dry mixture. Stir with a spatula until everything is evenly moistened. The mixture will be thick and slightly sticky. Fold in optional add-ins like chocolate chips or orange zest.

Press into the pan: Scrape the mixture into the prepared pan. Use a spatula or lightly damp hands to press it firmly and evenly into all corners. A firm press helps the bars hold together.

Bake: Bake for 22–28 minutes, until the edges are lightly golden and the center feels set. If you gently press the center, it should spring back a bit without feeling wet.

Cool completely: Let the pan cool on a rack for at least 45 minutes. Lift the slab out using the parchment and set it on a board. Cool fully before slicing to avoid crumbling.

Slice and serve: Cut into 9 large bars or 12 smaller ones. Enjoy as-is or warm slightly and serve with yogurt.