Here are the answers to Word Cookies Frosting in Prime Category. (8 Cookies Max)

Frosting level 1 – Eve, Even, Ever, Nee, Nerve, Never, Nun, Revue, Rue, Run, Uneven, Unnerve, Urn, Veer, Venue
Frosting level 2 – Exigent, Exit, Gene, Genie, Get, Gin, Nee, Net, Next, Nit, Tee, Teeing, Teen, Ten, Tie, Tin, Tinge
Frosting level 3 – Air, Art, Lair, Liar, Lit, Rail, Rat, Ritual, Tail, Tar, Tart, Taut, Tilt, Titular, Trail, Trait, Trial, Ultra
Frosting level 4 – Age, Agent, Ant, Ate, Eat, Gannet, Gate, Get, Gnat, Nag, Neat, Net, Tag, Tan, Tang, Tangent, Tea, Ten, Tenant, Tent
Frosting level 5 – Him, His, Honk, Honks, Ink, Inks, Ion, Ions, Kin, Mink, Minks, Monk, Monkish, Monks, Ohms, Shin, Sin, Sink, Ski, Skim, Skin, Son
Frosting level 6 – Eel, Eels, Else, Elusive, Elves, Eve, Eves, Evil, Evils, Lie, Lies, Lieu, Live, Lives, See, Sieve, Sue, Use, Veil, Veils, Vie, Vies, Vile
Frosting level 7 – Ale, Are, Ear, Earl, Earn, Earner, Eel, Elan, Era, Err, Lane, Lean, Leaner, Learn, Learner, Leer, Near, Nearer, Nee, Ran, Rare, Real, Rear, Reel, Relearn, Renal
Frosting level 8 – Chop, Chopper, Chore, Cope, Copper, Core, Crop, Echo, Epoch, Her, Hero, Hoe, Hop, Hope, Hopper, Ochre, Ore, Per, Perch, Pop, Pope, Porch, Pore, Pro, Prop, Roe, Rope
Frosting level 9 – Enter, Eve, Even, Event, Ever, Fee, Feet, Fen, Fern, Fervent, Fete, Fever, Free, Fret, Nee, Nerve, Net, Never, Reef, Rent, Tee, Teen, Ten, Tern, Tree, Veer, Vent, Vet
Frosting level 10 – Deem, Deer, Doe, Doer, Dome, Dove, Drove, Erode, Eve, Ever, Mere, Mode, More, Move, Moved, Mover, Ode, Ore, Over, Red, Redo, Reed, Remove, Removed, Rod, Rode, Roe, Rove, Roved, Veer
Frosting level 11 – Ego, Eon, Eye, Gene, Genotype, Get, Gone, Got, Nee, Net, Not, Note, One, Open, Opt, Peg, Pen, Pent, Pet, Poet, Pony, Pot, Tee, Teen, Ten, Toe, Ton, Tone, Top, Toy, Type, Yet
Frosting level 12 – Nor, Fern, Goer, From, Frog, Men, Ore, Forge, Eon, Gone, Omen, Ego, Roe, Fen, Fro, For, Foe, Fog, Gem, One, Form, Fore, Ogre, Germ, Gore, Frogmen, Gnome, Norm, Morn, More
Frosting level 13 – Rho, Other, Hero, Opt, Topper, Rope, Ore, Pert, Rote, Pet, Per, Hope, Tor, Top, Toe, Roe, Rot, Pro, Pot, Pop, Hoe, Hot, Hop, Prophet, Trope, Pope, Her, Prop, Tore, Poet, Pore, Port, The
Frosting level 14 – Vent, Sent, Evens, Yes, Vest, Vet, Net, Event, Even, Eves, Tens, Seen, Tense, Sty, Eve, Vets, Ten, Tee, Nest, Yen, Yet, Teens, Seven, Eye, Events, Envy, Set, See, Vents, Eyes, Seventy, Teen, Tees, Nets
Frosting level 15 – Unlit, Junta, Until, Jaunt, Lint, Abut, Jilt, Bait, Bail, Nail, Aunt, Jubilant, Lain, Unit, Jail, Blunt, Tuna, Built, Luna, Tuba, Tail
Frosting level 16 – Sock, Soak, Base, Books, Boos, Sack, Oaks, Back, Cabs, Beak, Coos, Sake, Beck, Bask, Coke, Bake, Cook, Cooks, Oboe, Case, Cask, Aces, Book, Backs, Cake, Cakes, Cobs, Casebook, Scab
Frosting level 17 – Orbs, Airs, Soar, Rams, Bias, Maria, Sari, Ribs, Aroma, Roam, Brio, Bars, Bras, Aims, Oars, Mars, Boar, Rims, Aria, Arias, Brim, Ambrosia, Arms, Mobs, Robs
Frosting level 18 – Reap, Arpeggio, Pier, Pear, Goer, Page, Rope, Pair, Pare, Opera, Ripe, Gear, Gripe, Grip, Grope, Gape, Agog, Ogre, Giro, Prig, Gore, Gorge, Rage, Pore
Frosting level 19 – Drop, Nadir, Piano, Raid, Rain, Rind, Panda, Pain, Paid, Pair, Pardon, Adorn, Drain, Radio, Roan, Road, Radon, Rapid, Iron, Apron, Pond, Inroad, Prod, Paranoid, Aria, Arid, Pandora, Darn, Ordain, Drip
Frosting level 20 – Mete, Ate, Met, Dame, Meted, Mead, Dam, Mat, Deem, Meat, Eat, Mad, Mate, Tea, Tee, Tad, Meet, Teamed, Made, Date, Tame, Team, Teem, Teed