Make the vegan custard
In a large shallow bowl, whisk together 1 cup plant milk, 1/2 cup chickpea flour, 2 tbsp maple syrup, 1 tsp vanilla, 1/2 tsp cinnamon, and a pinch of salt. Whisk until smooth and slightly thickened. The chickpea flour gives a nice eggy texture and browning.
Build the sandwiches
Spread about 1–1.5 tbsp peanut butter on one slice, and 1 tbsp jam on the other. Press together to make 6 sandwiches. Cut the crusts if you like a cleaner look (I do this when I want them to feel fancy).
Soak the sandwiches
Heat your skillet over medium heat and add 1 tbsp oil to coat. Dip each sandwich into the custard for 5–10 seconds per side, letting it soak but not collapse. Place the soaked sandwich on a plate while you cook the first batch. (Pro tip: hold the sandwich by the corner while dipping so it doesn’t fall apart.)
Cook until golden
Fry each sandwich in the skillet 3–4 minutes per side, pressing slightly with a spatula until both sides turn deep golden brown and slightly crisp. Add more oil as needed between batches. Remove and rest on a cooling rack (this keeps the bottoms crisp).
Serve warm
Dust with powdered sugar, add sliced bananas or berries, and drizzle maple syrup if you want. Slice each sandwich in half and serve hot.
Timing check: Two or three sandwiches cook at a time depending on pan size. Total cook time ~8 minutes active. Quick and very satisfying.