Peel and slice carrots on the bias in 1/4" thick slices.
In a 12" saute pan, bring chicken broth, carrots, salt and 1 Tablespoon maple syrup to a boil over medium heat. Cover and reduce heat to medium and simmer, stirring occasionally. Carrots should be almost tender when pierced with a knife, about 5-7 minutes.
Uncover pan and turn up heat to medium high and simmer, stirring occasionally until liquid is reduced to about 2 Tablespoons, about 2 minutes.
Add butter and and remaining 2 Tablespoons of maple syrup and toss carrots until well coated and carrots are cooked through and tender.
Turn off heat and add lemon juice, zest, and fresh thyme. Season to taste with additional salt and black pepper if necessary.