Dice the small potato into small cubes and boil it in salted water (1/2 tbsp salt) until tender.

Drain the cooked potato and set aside.

In a clay pot, add 1 cup of drained corn kernels and the cooked potato in equal proportions.

Add 1/4 finely chopped onion and 3 tbsp mayonnaise to the pot, then sauté until the onion turns translucent.