It's the accent that just won't quit. Never mind that she grew up as plain old Hillary Hayward-Thomas in an upscale neighborhood of Boston, it was a case of 'feliz navidad' at Casa Baldwin. Video obtained exclusively by DailyMail.com shows self-styled Spaniard Hilaria Baldwin treating her holiday guests to 'traditional' Spanish tortilla dished up with a hefty side order of accented Spanglish. Dressed in a plaid onesie, Hilaria, 40, is seen standing in the kitchen boasting about the authenticity of the recipe in her faux Spanish tones. Speaking to her friend in a heavily accented voice, she appears to 'forget' the English word 'onions' as, referring to actor husband Alec, she reveals: 'My husband hates…cebollas.' #celebrity #alecbaldwin #hilariabaldwin #fail