-Heat the oven to 450°F.

-Cut 1 pound of potatoes in quarters lengthwise, then in eights.

-Toss with 1 TBS extra virgin olive oil in a large bowl and a generous pinch of sea salt and pepper.

-Spread the potatoes on a large baking sheet and bake for 10-15 minutes or until barely tender.

-Meanwhile, trim the tops and bottoms of the radishes, and quarter them lengthwise.

-Peel 1 watermelon radish.

-Cut into slices, then large matchsticks.

-Trim off the top and bottom of 1 fennel bulb and slice in half lengthwise, then quarter each half and cut the quarters into pieces about 1-inch-wide.

-Toss the fennel pieces and radishes in the bowl with another TBS of olive oil and salt and pepper.

-When the potatoes are just beginning to get tender, spread the radishes and fennel on the baking sheet and toss to combine.

-Return the vegetables to the oven and roast for an additional 10 to 15 minutes or until the fennel and radishes are tender and juicy but not yet soft.

-While they are roasting, heat ¼ cup unsalted butter in a small saucepan over medium heat for 4 to 6 minutes or until it melts and then browns.

-Remove from the heat and carefully whisk in the following:

½ lemon juiced, about 1½ TBS

½ tsp Dijon mustard

½ tsp maple syrup

-When the vegetables are done, toss with the sauce and spread on a platter or in a bowl.

-Serve immediately.