If you want to strike success in a business meeting- offer a plate of shortbread, new research reveals.

A study of 2,000 business workers found one in four say they’re more inclined to close a deal in a meeting because of the biscuits provided, with shortbread, chocolate bourbons and flapjacks all likely to win a favourable reaction with pink wafers a no-no.

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In fact, having the right selection of snacks was deemed more crucial to meeting success than making good small talk beforehand, the study found.

The research, commissioned by biscuit bakers Thomas J Fudges, revealed the politics of eating snacks in the boardroom and found dunking divided respondents – more than half said dunking a biscuit in a tea or coffee was totally unacceptable in front of clients.

The study found a person’s biscuit choice can say a lot about them – those picking a chocolate bourbon tend to be more headstrong and confident, while better leaders opt for a custard cream.

A spokesman for Thomas J Fudges said: “It’s clear that biscuits are a bit of an emotional topic when it comes to the boardroom.”

One in five has even had a biscuit related tiff – either with a colleague or partner around taking the last biscuit or acting out of line when it comes to snacks.

Top 10 boardroom biscuits

1. Shortbread

2. Chocolate Bourbon

3. Flapjacks

4. Custard Creams

5. Digestives

6. Hobnobs

7. Milk Chocolate chip Cookie

8. Florentines

9. Rich Tea

10. Viennese Whirl

The rules of boardroom biscuit club

1. Only eat a biscuit when you’re not expected to chat/answer questions.

2. Don’t grab a handful of biscuits and work your way through them.

3. Don’t give a presentation while holding/eating a biscuit.

4. Leave a few minutes in between eating biscuits, no continuous eating.

5. Don’t pick up a biscuit then put it back again.

6. Don’t grab a biscuit before the host has taken one/offered one.

7. Don’t take a few biscuits home with you after the meeting.

8. Don’t dunk in your tea/coffee.

9. Don’t ask if there are any different biscuits.

10. Don’t take the last biscuit.