In a large skillet, heat the oil and butter over med/hi.
Toss in the lobster shells and cook until bright red.
Add the veggies and thyme. Toss in the salt and cook until the veggies are soft. Deglaze the skillet with the tablespoon of brandy.
Put the shells and veggie mixture into a large stock pot. Add the water and simmer without boiling over low for two hours.
Strain the liquid and pitch the solids and shells in the garbage.
Ladle the stock into jars and label. Store in the fridge for up to 5 days or freeze.
Lobster Risotto:
Heat a large skillet over med/hi. Add the oil and butter to the pan and get it hot.
Add the saffron threads. Cook until the onions are soft.
Add the risotto to the pan and toast until aromatic. Deglaze the pan with the brandy.
Add one cup of stock to the pan and allow the risotto to soak the liquid up. Repeat until all the liquid is gone. (about 5-6 minutes for each addition)