Ingredients
1 small red onion, sliced
1 cup good quality olive oil
2 tsp dried oregano
1/8 tsp black peppercorns
1 tsp salt
2 Tbsp red wine vinegar
2 lb mixed heirloom tomatoes, sliced thick
Basil leaves for garnish
Instructions
Thinly slice the red onion and place in a low bowl.
In a separate bowl, stir the olive oil, red wine vinegar, dried oregano and peppercorns together to combine well. Pour the mixture over the onions, making sure they are submerged.
Let sit on counter at room temperature to marinate for at least an hour. Keeps for two days unrefrigerated.
Slice your heirloom tomatoes about 1/2 inch thick and put marinated onions on top, using a little of the marinating liquid to dress the salad.
Garnish with basil leaves.