In large non-metallic bowl, whisk together the marinade ingredients. Add the endive and toss. Set aside at room temperature to marinate, stirring occasionally, for 30 min.
Bring a grill to medium heat and lightly oil the grate. Grill the endive cut side up until lightly charred, 8 to 10 minutes depending on your grill. Turn, brush with any remaining marinade, and cook until just beyonf al dente and lightly charred, another 8 to 10 minutes. Serve warm.
California Endive Farms