2 tablespoons olive oil
1/2 yellow onion, sliced
4 cloves garlic, minced
1/4 cup vegetable broth
1 ear corn, kernels cut from cob
2 cups summer squash, thinly sliced
2 cups zucchini, thinly sliced
3 tablespoons fresh basil, chopped
1 tablespoon butter
Salt & pepper to taste