( CNN ) -- Actress , writer and director Nia Vardalos talks to CNN 's Jack Gray about infertility , her new book and reprising the blockbuster role that made her famous . CNN : OK , full disclosure , we 're friends . I 've been to your house for Thanksgiving . Your book is called `` Instant Mom , '' so I 'm assuming it 's about how you 'd like to adopt me . On the off chance it 's not , please tell me what it 's about and why you decided to write it . Vardalos : True , we are one slumber party away from being BFFs . And it 's all thanks to the virtual wine bar where nice people now connect : Twitter . OK , back to me . I wanted to write about the tenaciously stubborn quest for happiness I believe lies within all of us . Plus I 'm trying to blow the lid off the silent failure women feel about infertility . For years , I was ashamed , then via foster care found my daughter ... when she was almost 3 years old . I did n't adopt a baby . Hence the title . CNN : People feel like they know you by way of `` My Big Fat Greek Wedding '' -- because that was a personal film in many ways -- but this book is actually much more personal , much more emotional . Was it tough to write ? Because you 're actually a very private person . Vardalos : I am nauseous from the acid reflux I 'm having because I am going public in this book . Sure , I enjoy making fun of my family for fun and profit , but to reveal vulnerable truths like this is completely unlike me . However , I have a nagging feeling that the success of `` My Big Fat Greek Wedding '' happened because I 'm supposed to be using my big mouth to talk about adoption . CNN : You 're primarily identified with comedies . Was it difficult to write about the incident when you were the victim of a crime ? Vardalos : Terrifying . When I finished that chapter , I debated keeping it in because , well , now people will know . And although I describe it in what was , for me , excruciating detail , I eventually found the humor in the experience when I was writing about it because of the human idiocy I encountered after the incident . Anyway , it may be a mistake , but I kept it in . Then I told my mom . Nia Vardalos stays 'in the moment ' CNN : What have you learned from your own mom ? And , for that matter , what have you learned from Lainie Kazan , who played your mother in `` My Big Fat Greek Wedding '' ? Vardalos : My mom taught me to always conduct yourself as if a video camera is on you at all times . Lainie Kazan taught me to never sleep with my co-stars . CNN : Let 's talk about the title , `` Instant Mom . '' Be honest , did your publisher want to call it `` My Big Fat Greek fill-in-the-blank-with-something-about-parenting '' ? Vardalos : Here 's a humblebrag : There were about 10 offers for this autobiography , and several wanted to call it `` My Big Fat Greek Baby . '' Which is why I went with HarperCollins . CNN : What 's that `` instant '' transformation like ? One minute it 's game night with Tom Hanks and Rita Wilson , and the next minute you have a daughter in preschool , right ? Vardalos : Yep , one evening I 'm waving on a red carpet whilst sucking in my gut , and the next day I was waving goodbye to my daughter as she walked into preschool , whilst sucking back my snot-bawling and wiping her spilled apple juice out of my Prada purse . CNN : Adoption advocacy , particularly adoption for children in foster care , is something you 've been vocal about since long before you wrote this book . Do you feel like you 're making progress ? Vardalos : No . That 's why I wrote this book . I wanted to write about these kids and the compassionate work these social workers and adoption attorneys do to place them in permanent homes . I call them super-pretty angels . Even the men . There is a how-to-adopt appendix , fully vetted by a social worker . This is the book I wished was out there when I was searching for credible information on how to adopt . CNN : But it 's not just a book about adoption . It 's actually not even a mom book . I think it 's for everyone . Vardalos : Oh , you 're good . Keep that in . CNN : Rachel Dratch , who , like you , is very funny and very smart , said your book made her laugh and cry , which is kind of the highest of compliments , rights ? Vardalos : It is . I wrote this book in the same way I wrote `` My Big Fat Greek Wedding '' : I simply sat alone and poured my guts out into a computer keyboard , not caring how it would be received , not letting my mind wander into worrying what people would think of me . I did n't show it to anyone until it was printed , so it would be too late to make changes . I wanted to write unfettered by critique and concern on how it would be received or what it would do to my image . It 's the most honest I 've ever been , and yes , I 'm petrified . But I write in the prologue that if something scares me , I tend to lean into it . I 'm not brave . I 'm more of a fearless idiot . CNN : Your husband , Ian Gomez ( who stars in TBS 's `` Cougar Town '' ) , cooks a nice chicken dinner ; you cook really good lasagna . Whose food does your daughter prefer ? Vardalos : Her grandmother 's . CNN : How did parenthood change your Hollywood life ? Less clubbing , I assume . Vardalos : No , you 've been over for dinner . You see we still snort poppers after dessert . CNN : My Greek grandmother will yell at me if I do n't ask you about the chances of a sequel to `` My Big Fat Greek Wedding . '' I know you 've got a book tour to focus on , but at least give me something to tell her on our weekly phone call . Vardalos : Tell her hi from me , and yes , I have been approached to the write the sequel . I am finally coming around to the idea of doing it because ( co-star ) John Corbett and I hung out recently , singing and playing guitars until 3 a.m . In that moment of clarity that only comes with too much wine and the haze of approaching dawn , I suddenly visualized where Toula and Ian end up . I saw their world very clearly . Toula and Ian 's life is very similar to the easy and solid friendship I felt with John that night . But with less guitars . CNN : This has been fun . Let 's go ask your husband to cook us some chicken . Vardalos : He said he will in the morning , but for now we have to shut up and put the dogs out . `` Instant Mom '' by Nia Vardalos will be released by HarperCollins on April 2 .
Nia Vardalos wrote the runaway hit movie `` My Big Fat Greek Wedding '' and she is also a producer of this new film. She wrote the book to advocate for foster care and adoption after her experiences . Vardalos says that going from red carpet to kid duty is n't seamless .