In a bowl, mix yeast and sugar with lukewarm water. Let the solution rest until yeast froths.
In a mixing bowl, mix wheat flour, salt, oil and activated yeast solution. Knead the dough with water.
Place the dough in a greased bowl. Cover it with cling wrap. Let it rest until it doubles in volume.
Once the dough rises in volume, punch it and release the air. Divide the dough into 8 equal portion.
Roll each dough ball in a small disc, place peanut garlic chutney and potato stuffing. Seal all the edges.
Place shaped vada pav on a baking tray lined with parchment paper. Let them rest for 20 more minutes.
After 20 minutes of resting, brush the vada pav with milk and sprinkle sesame seeds.
Meanwhile preheat the oven at 200 °C (both the coils on).
Bake vada pavs in a preheated oven for 25 minutes.
After 25 minutes, take the baking tray out, brush the baked vada pav with butter. Allow them to cool on a wired rack. The healthier version of popular Maharashtrian snack is ready.