Chef Croux Koplin isn’t just cooking up a storm at Coachella … he’s cashing in big time! The private chef tells TMZ he and his tight-knit crew of six -- including another chef, an assistant and three helpers -- pulled in a sizzling $11K during the first weekend … all while bouncing between luxe desert estates and influencer-packed homes. Croux says he locked down three separate gigs … starting with a marathon booking to cook for 15 to 17 German influencers from Wednesday through Monday across