In a large, deep pot, heat the 1/4 cup of olive oil. Add the shallot and sliced garlic, season lightly with salt and pepper and cook over high heat, stirring, until the garlic is softened and lightly browned, about 3 minutes. Add the mussels and cook, stirring, for 1 minute. Add the wine, cover and steam the mussels until they open, about 5 minutes. Remove from the heat. Using a slotted spoon, transfer the mussels to 4 deep bowls, discarding any mussels that do not open.