Heston Blumenthal's Fat Duck almost quadrupled its post-tax profits in the year to 29 May 2019.
The restaurant in Bray, Berkshire, saw post-tax profits reach £0.8m, compared to £0.2m the previous year.
Accounts filed with Companies House showed earnings before interest, tax, depreciation and amortization (EBITDA) of £1.3m, an increase from £0.9m the previous year.
Turnover for the year stood at £7.3m, up from £6.7m the previous year.
Within the filings the group acknowledge risks to the industry Brexit, increases in the National Living Wage and supplier price inflation.
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