1. In a medium pot, bring the olive oil and garlic to a boil then turn the heat down to low and let garlic and olive oil cook for 30 minutes.
2. In the meantime, cook your pasta according to the directions on the box.
3. At the same time, in a very large skillet, cook your mushrooms in a bit of olive oil and add some S&P, to taste.
4. When the pasta is done cooking, drain the pasta and add it to the skillet with the mushrooms.
5. In the pot where the garlic oil is, add the 6 tbsp. of butter and let it melt completely. Once butter has melted, add the jar of pasta sauce and stir to mix well.
6. Remove the garlic sauce from heat and pour all over the pasta in the skillet. Toss well to coat every strand.
7. Serve with fresh basil or parsley and some freshly grated parmesan cheese!