Place carrots in a saucepan and cover with water.
Bring to a boil, then reduce heat and simmer until just fork-tender, about 8β10 minutes. Be careful not to overcook them.
Drain the carrots thoroughly and return them to the warm saucepan.
Drizzle with the lemon juice and toss gently to coat.
Add the vegan margarine, brown sugar, and sea salt to the saucepan with the carrots.
Heat over medium heat, stirring frequently, until the margarine and sugar melt together to form a glaze that coats the carrots, about 5 minutes.
Finish with a sprinkle of fresh chopped parsley or thyme just before serving to add a pop of color and fresh, herbaceous flavor.