Crisp-tender green beans blistered in garlic butter and finished with a squeeze of fresh lemon. Sliced garlic flavors the butter without burning, so you get real garlic flavor with none of the bitterness.
Rinse and trim the green beans, then pat them completely dry with a clean towel. Dry beans are essential for browning.
Melt the butter in a large skillet over medium heat. Add the sliced garlic and cook, stirring often, for 1 to 2 minutes, until soft and just beginning to turn golden. Remove the garlic with a slotted spoon and set aside.
Add the green beans and toss to coat in the garlic butter. Cook over medium heat, stirring often, for 3 to 4 minutes. Some blistering and browning is good, but don't let them scorch.
Return the garlic to the skillet and add the water. Continue cooking and stirring until the water has fully evaporated and the beans are crisp-tender.
Remove from the heat. Squeeze the lemon juice over the beans and season with salt and pepper to taste.
Grate fresh Parmesan over the top if desired and serve immediately.
Notes
Slice, don't mince the garlic. Slices flavor the butter and lift out cleanly before they can burn. Minced garlic scorches fast and turns bitter.
Dry beans are non-negotiable. Any moisture on the beans makes them steam instead of blister, and the butter won't cling.
Use a large skillet. Crowded beans steam each other. Cook in two batches if you're doubling the recipe.
Watch the last minute closely. Once the water evaporates, the window between crisp-tender and soft is short.
Salt at the end. Green beans take more salt than most people expect, and it sticks better while they're hot and buttery.
Storage: Keep leftovers in an airtight container in the fridge for up to 3 days. Reheat in a skillet with a little butter rather than the microwave. Freezing is not recommended.
Make ahead: Trim and dry the beans up to a day in advance and store them in a zip-top bag in the fridge.